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109 lines
3.1 KiB
C++
109 lines
3.1 KiB
C++
/*
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* MapViewCache.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "MapViewCache.h"
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#include "MapRenderer.h"
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#include "MapViewModel.h"
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#include "../render/CAnimation.h"
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#include "../render/Canvas.h"
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#include "../render/IImage.h"
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#include "../../lib/mapObjects/CObjectHandler.h"
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MapViewCache::~MapViewCache() = default;
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MapViewCache::MapViewCache(const std::shared_ptr<MapViewModel> & model)
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: model(model)
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, mapRenderer(new MapRenderer())
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, iconsStorage(new CAnimation("VwSymbol"))
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, intermediate(new Canvas(Point(32, 32)))
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, terrain(new Canvas(model->getCacheDimensionsPixels()))
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{
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iconsStorage->preload();
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for(size_t i = 0; i < iconsStorage->size(); ++i)
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iconsStorage->getImage(i)->setBlitMode(EImageBlitMode::COLORKEY);
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}
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Canvas MapViewCache::getTile(const int3 & coordinates)
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{
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return Canvas(*terrain, model->getCacheTileArea(coordinates));
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}
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std::shared_ptr<IImage> MapViewCache::getOverlayImageForTile(const std::shared_ptr<MapRendererContext> & context, const int3 & coordinates)
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{
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size_t imageIndex = context->overlayImageIndex(coordinates);
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if(imageIndex < iconsStorage->size())
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return iconsStorage->getImage(imageIndex);
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return nullptr;
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}
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void MapViewCache::updateTile(const std::shared_ptr<MapRendererContext> & context, const int3 & coordinates)
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{
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Canvas target = getTile(coordinates);
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if(model->getSingleTileSize() == Point(32, 32))
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{
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mapRenderer->renderTile(*context, target, coordinates);
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}
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else
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{
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mapRenderer->renderTile(*context, *intermediate, coordinates);
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target.drawScaled(*intermediate, Point(0, 0), model->getSingleTileSize());
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}
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}
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void MapViewCache::update(const std::shared_ptr<MapRendererContext> & context)
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{
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Rect dimensions = model->getTilesTotalRect();
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for(int y = dimensions.top(); y < dimensions.bottom(); ++y)
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for(int x = dimensions.left(); x < dimensions.right(); ++x)
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updateTile(context, {x, y, model->getLevel()});
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}
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void MapViewCache::render(const std::shared_ptr<MapRendererContext> & context, Canvas & target)
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{
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Rect dimensions = model->getTilesTotalRect();
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for(int y = dimensions.top(); y < dimensions.bottom(); ++y)
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{
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for(int x = dimensions.left(); x < dimensions.right(); ++x)
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{
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int3 tile(x, y, model->getLevel());
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Canvas source = getTile(tile);
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Rect targetRect = model->getTargetTileArea(tile);
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target.draw(source, targetRect.topLeft());
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}
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}
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if (context->showOverlay())
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{
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for(int y = dimensions.top(); y < dimensions.bottom(); ++y)
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{
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for(int x = dimensions.left(); x < dimensions.right(); ++x)
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{
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int3 tile(x, y, model->getLevel());
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Rect targetRect = model->getTargetTileArea(tile);
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auto overlay = getOverlayImageForTile(context, tile);
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if (overlay)
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{
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Point position = targetRect.center() - overlay->dimensions() / 2;
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target.draw(overlay, position);
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}
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}
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}
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}
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}
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